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Finding the Fourth Proportional to 74,695.70, 112,076.50 and 39,626.76

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Solution

The fourth proportional to 74,695.70, 112,076.50 and 39,626.76 is: 59,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,695.70 : 112,076.50 = 39,626.76 : x
  2. Step 2: Convert to fraction form
    74,695.70/112,076.50 = 39,626.76/x
  3. Step 3: Cross multiply
    74,695.70x = 112,076.50 × 39,626.76
  4. Step 4: Simplify right side
    74,695.70x = 4,441,228,567.14
  5. Step 5: Solve for x
    x = 4,441,228,567.14/74,695.70
  6. Step 6: Final answer
    x = 59,457.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.